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Equity and Other Comprehensive Income (Loss) - Summary of Changes in OCI by Components of Equity (Parenthetical) (Detail) - Translation reserves [member] - SEK (kr) kr in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of classes of share capital [line items] |  |  |
Realized gains losses net from liquidated operations | kr 73 | kr 59 | kr (85)
Increase (decrease) through net exchange differences, goodwill | kr 4,393 | kr (77) | kr 5,070

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- Definition The increase (decrease) in goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B67 -Subparagraph d -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_d_vi&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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